78840281 is an odd 8-digits composite number following 78840280
and preceding 78840282 . In scientific notation, it is written as 7.8840281 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 72775632 positive integers (up to 78840281) that are relatively prime to 78840281.
78840281 has 4 divisors, whose sum is 84904932
The reverse of 78840281 is 18204887
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-eight million eight hundred forty thousand two hundred eighty-one
Scientific notation
7.8840281 × 10^7
Engineering notation
7.8840281 × 10^6
Prime Factorization
13 × 6064637
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78840281
Product of the distinct prime numbers
The prime factorization of 78840281 is 13 × 6064637.
Since it has a total of 2 prime factors.
6 , 1 , 55 , 11 , 18 , 762 , 7236 , 7752 , 11512 , 56655 , 595340 , 462696 , 2398459 , 9697190 , 10004440 , 178576 , 597209058 , 153230124 , 1848543994 , 4824687927
n×2
157680562
n×3
236520843
n×4
315361124
n×5
394201405
n÷2
39420140.5
n÷3
26280093.666667
n÷3
19710070.25
n÷5
15768056.2
n2
6215789908158961
n3
4.9005462299622E+23
n4
3.8636044182371E+31
n5
3.0460765800665E+39
2 √n
8879.2049756721
3 √n
428.79467936159
4 √n
94.229533457786
5 √n
37.962047888782
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78840280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78840281 can be divided by 4 positive divisors.
The sum of these divisors (counting 78840281) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101100110000000111011001
3
Ternary
12111100111112102
4
Quaternary
10230300013121
5
Quinary
130140342111
6
Senary
11453453145
8
Octal
454600731
10
Decimal
78840281
12
Duodecimal
224a11b5
16
Hexadecimal
4b301d9
20
Vigesimal
14cf0e1
36
Base36
1axtjt
md5
c1964173f74e764ac5683cc3d6b518c9
sha1
0c1eb7ca0b727f0c84938322d7dc3e4d4acb35f3
sha256
eca3bc2588eabb76c3b91a63db34e8c31645a9a22925ad8014f9edc187e1c2c7
sha512
25d0cf39f608d507a2ab2743256e194def0cd0145c91279da877e27cabf0e1029136962bdb7eb691bd4d6b767bb7b588a1b488f21f314099a2aaeafa0c2482ce
ripemd-160
fc06f8a3658a3b885a0a55738655c9481e8c740b
Diameter
157680562
Circumference
495368095.19311
Area
1.952747991173E+16
Volume
2.0527360046168E+24
Surface area
7.8109919646919E+16
Circumference
495368095.19311
Perimeter
315361124
Area
6215789908158961
Diagonal
111496994.65151
Surface area
37294739448953766
Volume
4.9005462299622E+23
Space diagonal
136555372.37501
Perimeter
236520843
Area
2.6915159825263E+15
Altitude
68277686.187504
Surface area
2.6915159825263E+15
Volume
5.775349117874E+22
Height
37165664.883835